Cooking appliance with water box component

The invention discloses a cooking appliance with a water box component. The water box component comprises a water box, a box sleeve and a connecting piece, wherein a through hole is arranged in the side wall of the box sleeve; a rotating shaft is arranged at the side wall of the box sleeve; the connecting piece is provided with a shaft sleeve; the shaft sleeve sleeves the rotating shaft; the shaftsleeve is connected with a rocker arm; one side of the rocker arm is provided with a male head; the male head is rotationally arranged in the through hole; a female head is arranged on the side wallof the water box; the male head is inserted into the female head; the water box component further comprises a bracket; a valve core is arranged in the inner hole of the female head; a first water drain hole is arranged in the bottom wall of the box sleeve; a first groove is arranged in the bottom wall of the bracket; a second water drain hole penetrating vertically is arranged in the first groove;and a water drain interfac